scherer



(N-oModel.) 2 Sheets-Sheet 1.

A..G. SCHERER'.

MACHINE POR vSEAMINGr SEGTIONAL SHEET METAL PIPES.

No. 523,687.A Patented July 31,1894.

(No Model.) v 2 Sheets-Sheet 2.

A. G. SGHERBR. l I MACHINE POR SEMING SEOTIONAL SHEETMETAL PIPES.

Patented July .31, 1894.

l wk S n@ L www .2 J.. ME Mw @y Wffwesses zA I MEM/M UNITED STATES Pri'rinivfr ,'Orrrcn.

ALBERT SCHERER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE EXCELSIOR STEEL FURNACE COMPANY, OF SAME PLACE.

MACHINE FOR SEAMING SECTlONAL'SHEE'T-METL PI'PES.

SPECIFICATION forming part of Letters Patent No. 523,687, dated July 31,1894. Appncaion inea November 8,1893. serai No. 490,384. (No man.)

To aZZ whom it may concern; f

Be it known that I, ALBERTG. SOHERER, a citizen of the United, States, residing atOhicago, in the county of Cook and State of I1linois, have invented a newand useful Improvement in Machines for Seaming Sectional Sheet-Metal Pipes, of which the followingis a specification.

This invention relates to mechanism for securing together sections of sheet metal piping so as to form therefrom long lengths adapted to be used for conveying Warm air from furnaces to the rooms of buildings,and in other places where such pipes are suitable. My endeavor in the invention has been to produce a machine adapted to unite three or more sections at one time, and thereby to economize time and laborin the operation, all the joints being formed simultaneously.

The invention consists in thenovel construe tion and novel combinations of parts hereinafter set forth and more particularly pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my improved machine. vation of a part of the mechanism for holding the seaming rollers in operative position. Fig. 3 is a longitudinal section of. the movable head for supporting one end of the horny upon which the pipe sections are supported. Fig. 4 is a vertical section of one of the seaming heads. Fig. 5 is a vertical section of the same at right angles to the section given in Fig. 4. Fig. 6 is a sectional view showing the devioefor positioning the movable roller used on one of the scanning operations. Figs. 7, 8 and 9 show the different steps taken in the seaming. Fig. 10 is a partial longitudinal section of the horn.

In said drawings W represents a suitable supporting frame in which themoving parts are mounted. Power is communicated byl means of the pulleyX mounted upon one end of a shaftA which is joined to the horn B by a universal coupling shown at a.

Upon the horn B are mounted collars b 1ocated under the joints of thepi pes and adapted 4 to support the pipes interiorly during the seaming operations. I also preferablylconneet these collars by sheet metal tubes b which serve as guides to the end of the pipe Fig. 2 is an ele.-y

collars and guides are of course changeable to suit different diameters of pipes.

At the farther end of the horn a movable head C is provided in which ythat end of the horn may be centered and supported Whilek the seaming is being done, and which is adapted to be drawn away from the horn after the operation to permit the taking off of the seamed pipe and the putting on of the unseamed lengths. To adapt the head C to the performance of its various functions, it is mounted loosely on the end of a stationary shaft D, and is provided with a central recess d upon its side face adapted to receive the horn. The end of the horn is toothed as at m and the recess in the head is so made as to conform to the teeth, so the hornmay communicate rotary motion to the head. Annu lar grooves d are also cut in the side face of the head into which the edge of the pipe may be inserted, enough of the grooves being provided to accommodate all the sizes of pipe operated upon in the machine. The shaft is Yheld stationary in some suitable way, as for instance by the set screw e.

To slidethe head ahand wheel F is mounted upon the shaft, and said Wheel has an interior spiral groove f which receives one end of the key E, the other end of the key engaging with a straight interior groove-in the head. The hand Wheel is free to rotate so that Wheny the Wheel is turned, the engagement of the key E with both the Wheel and thehead will cause a sliding motion bythe key which is communicated to the head. The Wheel is of course confined as to its location upon the shaft by the nut G upon one side andthe bearing g upon the other side.

When the head is moved forward it engages the end of the horn and receives the rotary motion ofthe latter, and it also receives and supports the edge of the pipe inone of its side grooves. The horn is further provided at the end near the driving pulley with ahead I-I having grooves d' corresponding to the grooves in head C, and adapted to receive" rool the same manner that the rear end thereof is supported by the head C, and this head H is also desirably provided with an overhanging flange h adapted to encompass the pipe.

When the engagement by the horn with the head C is broken, the end of the horn unless sustained will naturally fall, and to prevent any marked descent which might strain the junction of the horn with the driving shaft, I provide under thel anged head H a suitable support J. This support is placed as near the head as may be without interference with the rotation of the horn. This support is also preferably made use of in raising the horn when it is desired to bring it in alignment with the movable headC,

and this is accomplished by mounting said4 support upon a lever j pivoted to the frame ofthe machineat c' and connected with a vertical rod K operated by a treadle lever 7c. When the movable head is drawn back the horn is of course free to be swung upon the universal coupling sufficiently to bring its end beyond the periphery of the head, in

which position it will be supported by thesupport J, and this positioning allows the ready putting on and taking off of the pipe.

The pipe sections Y Y being positioned upon the horn and the head C being moved into engagement with the horn, it will be seen that the horn and pipe may be rotated by starting the pulley X and theseaming operations may then be proceeded with. These are performed by proper seaming tools located ov? each of the joints between the sections Y I have shown at Fig. 1 five sections of pipe being united, and there are therefore four sets of seaniing rolls embraced in the machine. lhese seamin g rolls are all supported from Ia shaft L located in a plane above that of the horn. This shaft may either 'rock or be given an entire revolution at each seaming operation, and it has an operative position for each separate operation in the seamin g. To lock it in these several operative positions, I provide it with an upwardly projecting arm M carrying a flat surfaced plate or Weight n, and this plate has a series of of openings o each adapted to receive a locking bolt O, operated by an elbow thumb lever O having a spring o for keeping the bolt in locking engagement.

In each set of seaming rolls are a grooved roll P for compressing the flanged parts of the seam, the coacting beveled rollers P and P2 for bending over the seam, and the plain surfaced roll P3 for flattening the seam. Of these the rolls P P and P3 are journaled in the lower ends of T shaped supports Q, adjustably held in hangersR mounted upon the shaft L, and the rolls P2 are j ournaled in the ends of curved arms Q' pivoted upon collars r encircling the hangers and adjustably held thereon by set screws r. The several rolls are located upon the supports Q, as shown, whereby in the first operative position of the shaft L, all the rolls P are brought Vinto ac-V tion, in the second operative position the rolls P and P2 do their` work, and in the third operative position the flattening rolls are caused to operate. After the last operation the shaft L is turned through the remaining portion of a revolution so as to bring the first rolls P again to the work.

In order that the rolls P2 may be moved up to the work at the proper time, I connect all their supporting arms Q to a horizontal rod S and actuate that rod in such manner as to lower the rolls against the seam by means of a cam T attached to the frame of the machine, a slide S having an anti-friction roller in its lower end, and moving in ways formed in a hanger S2 depending from shaft L, and a rod Si3 adjustable as to length and connecting said slide with an upward extension Sl of thenearest one of the arms Q.' The cam T is of course so located as to actuate the slide and through it give simultaneous motion to all the arms'Q at the proper time to bring the rolls P2 to the work, and the shaft L remains stationary with the slide resting upon the crown of the cam during the time said rolls are working.

It will be noticed that my machine readily permits all the adjustments necessary to accommodate the different diameters of pipe.

I also prefer to secure the hangers adj ustably j upon the shaft 'L as that permits their being shifted to suit the location ofthe joints, which of course would be necessary if the sections varied in length.

The plate n in addition to the function already given it, is preferably made heavy enough so that it may counter-balance substantially the weight of the seaming tools and their supporting devices, so that shaft L `will b e under easy control at all times.

y Of course the seaming tools must be adapted to the kind of seam made, andl do not wish to be limited to the particular ones shown.

l. The combination in a machine for seaub ing together the ends of .a series of pipe sec-V a set of seaming rolls for each joint, said rolls` being provided with supports whereby the corresponding rolls of each set may be brought into action simultaneously, substantially as set forth.

2. The combination in a machine for seaming together the ends of a series of pipe sections, of a horn for supporting the pipe sections,supports at both ends of said horn, and a set of seaming rolls for each joint, said rolls being provided with supports adapted to be locked in different positions to bring all the rolls of each set successively into operation, substantially as set forth.

3. The combination in a machine for seaming together the ends of a series of pipe sec- IIO which are mounted upon the same shaft, sub'- stantially as specified.

4. The combination ina machine for seaming together the ends of a series of pipe sections, of ahorn for supporting the pipe sections, and aset of seaming rolls for each joint, said rolls being provided with supports all of 4 which are mounted upon the same shaft, and

said shaft being provided with meanswhereby it may be locked successively in the various operatin g positions, substantially as specified.

5. The combination in a machine for seaming together the ends'of a series of pipe sections, of a rotating horn for supporting the pipe sections, and a set of seaming rolls for each joint, said rolls being provided with supports whereby the corresponding rolls of each set may be brought into action simultaneously, substantiallyv as specified.

6. The combination in' a machine for seaming together the ends of a series of pipe sections, of a rotating horn for supporting the pipe sections, and a set of seaming rolls for each joint, said rolls being provided with su pports adapted to be locked in different positions to bring all the rolls of each set successively into operation, substantially as specified.

7. The combination in a machine for seaming together the ends of a series of pipe sections, of a horn for supporting the pipe sections, and a set of seaming rolls for each joint, said rolls being provided with supports consisting of the shaft L, the hangers secured to the shaft and the supports for the rolls'secured in the hangers, substantially as speciiied.

8. The combination with thehorn of 'several sets of seaming rolls, supports for said rolls embracing movable arms upon which some of the rolls are journaled, means whereby said movable arms are united together, and means for actuating said arms, substantially as specified.

9. The combination with the horn, of several sets of seaming rolls each embracing a roll P2, movable arms upon which said rolls P2 are journaled, a connecting rod to which said arms are joined, and means for moving said arms simultaneously, substantially as' speciied. Y

10. The combination with the horn, of several sets of seaming rolls each embracing a roll P2, movable arms upon which said rolls P2 are journaled, a connecting rod to which said arms are joined, the cam, the slide and mechanical connections between the slide and the arms, substantially as specified.

11. The combination in a seaming machine, of the series of seaming devices, the shaft upon which all said devices are mounted,`and the counterbalance n, substantially as specified.

12. The combination in a seaming machine, of the series of seaming devices, the shaftupon which all said devices are mounted, and the counterbalance fn, serving also as a part `of the mechanism for locking said shaft in its various positions, substantiallyas specified.

13. In a seaming machine for seaming three or more pipe sections together, the combination with the seaming devices of a horn permanently supported at one end and having a removable support at the other end, adapted toY rotate with the horn, substantially as specified.

14. In a seaming machine for seaming three or more pipe sections together, the combination with the seaming devices of a horn hinged or flexibly joined to its support at one end and having a removable support at th other end, substantially as specified. `f l 15. In a seaming machine for seaming three or more pipe sections together, the combination with the seaming devices of a horn hinged or flexibly joined to a rotary shaft at one end, and provided with a removable centering support at the other end, substantially Ias specified. I

16. In a seaming machine for seaming three or more pipe sections together, .the combination with the seaming devices of a horn hinged or flexibly joined to a rotary shaft at one end, and provided with a rotatable and sliding head at the other end, substantially as specified.

17. The combination in a seaming machine, of the horn, the rotary driving shaft, the dexible coupling uniting the horn and shaft, and` the removable head C, substantially'as specified. v

18. In a seaming machine, ahorn joined to the machine by aflexible joint at one end, and having a removable support at the other end, whereby the last mentioned end is adapted to be swung outward for theputting on and' taking off the pipe,substantially as specified.

19. In aseaming machine of the kind herein specified, the combination of a rotating horn adapted to be swung at one end, a removable support for said swinging end, andthe seaming devices, substantially as specified.

20. The combination'with the swinging and flexibly joined horn, having the flanged head of the support J, operating and located substantially as set forth. j

21. The combination with the swinging and [iexibly joined horn, having the flanged head, of the support J, lever devices for raising said support, and sliding head C, substantially as specified.

22. The combination with a horn supported by a exible joint at one end and a removable support at -the other end, of means essentially such as described for supporting the horn after the withdrawal ofthe removable end support, substantially as specified.

ALBERT G. SCHERER. Witnesses:

L. E. CURTIS, H. M. MUNDAY.

IOO 

